_______youmustimproveyourwork,orI

发布时间：2020-07-09 10:31:15

_______ you must improve your work, or I shall dismiss you.













A.If












B.Unless











C.Either











D.When

网友回答

C解析固定搭配either…or
以上问题属网友观点，不代表本站立场，仅供参考！